- 您現(xiàn)在的位置：買賣IC網 > PDF目錄379094 > CY7C451 (Cypress Semiconductor Corp.) 512x9 Cascadable Clocked FIFOs with Programmable Flags(帶可編程標記的512x9可級聯(lián)定時的先進先出) PDF資料下載
參數資料
| 型號： | CY7C451 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 512x9 Cascadable Clocked FIFOs with Programmable Flags(帶可編程標記的512x9可級聯(lián)定時的先進先出) |
| 中文描述： | 512x9級聯(lián)與時鐘FIFO的可編程標志（帶可編程標記的512x9可級聯(lián)定時的先進先出） |
| 文件頁數： | 10/23頁 |
| 文件大?。?/td> | 437K |
| 代理商： | CY7C451 |
CY7C451
CY7C453
CY7C454
10
PRELIMINARY
Notes:
26. The FIFO in this example is assumed to be programmed to its default flag values. Almost Empty is 16 words from Empty; Almost Full is 16 locations from Full.
27. R4 only updates the flag status. It does not affect the count because ENR is HIGH.
28. When making the transition from Almost Empty to Intermediate, the count must increase by two (16
=>
18; two enabled writes: W2, W3) before a read
(R4) can update flags to the Less Than Half Full state.
Switching Waveforms
(continued)
Read to Almost Empty Timing Diagram with Free-Running Clocks
Read to Almost Empty Timing Diagram with Read Flag
Update
Cycle and
Free-Running Clocks
t
SKEW1
t
SKEW2
t
FD
t
FD
t
FD
COUNT
17
16
18
16
EREAD
CKR
ENR
CKW
ENW
E/F
PAFE
HF
17
17
15
EWRITE
CKR
CKW
COUNT
17
16
18
16
t
SKEW1
t
SKEW2
t
FD
t
FD
t
FD
ENR
ENW
PAFE
EREAD
READ
EREAD
EREAD
17
17
15
HF
EREAD
FLAG UPDATE CYCLE
C451-13
E/F
C451-14
HIGH
HIGH
HIGH
HIGH
R1
R2
R3
EREAD
R4
EREAD
R5
EREAD
R6
W1
W2
EWRITE
W3
W4
W1
W5
W6
R1
R2
R3
R4
R5
R6
R7
EW2
EW3
W1
W4
W5
W6
W7
18 (no change)
[21,24,26]
[21,24,26,27,28]
相關PDF資料 |
PDF描述 |
|---|---|
| CY7C454 | 4Kx9 Cascadable Clocked FIFOs with Programmable Flags(帶可編程標記的4Kx9可級聯(lián)定時的先進先出) |
| CY7C466A | Asynchronous, Cascadable 64K x9 FIFOs(異步，可級聯(lián)的 64K x9 先進先出) |
| CY7C460A | Asynchronous, Cascadable 8K/16K/32K/64K x9 FIFOs |
| CY7C460A-10JC | Asynchronous, Cascadable 8K/16K/32K/64K x9 FIFOs |
| CY7C460A-10JI | Asynchronous, Cascadable 8K/16K/32K/64K x9 FIFOs |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CY7C451-14JC | 制造商:Cypress Semiconductor 功能描述:FIFO Mem Sync Dual Depth/Width Uni-Dir 512 x 9 32-Pin PLCC |
| CY7C451-30LMB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CY7C453 WAF | 制造商:Cypress Semiconductor 功能描述: |
| CY7C453-14JI | 制造商:Cypress Semiconductor 功能描述: |
| CY7C453-20JC | 制造商:Cypress Semiconductor 功能描述:FIFO Mem Sync Dual Depth/Width Uni-Dir 2K x 9 32-Pin PLCC 制造商:Cypress Semiconductor 功能描述:FIFO, 2K x 9, Synchronous, 32 Pin, Plastic, PLCC |
發(fā)布緊急采購，3分鐘左右您將得到回復。